Question
Solve the system of equations in Problems $11-46 .$ $$\begin{array}{l}x+y=7 \\x-y=3\end{array}$$
Step 1
Step 1: First, we add the two equations together to eliminate $y$: $$ \begin{array}{l} x+y=7 \\ x-y=3 \end{array} $$ Adding these two equations gives $2x = 10$. Show more…
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